DUBBEL - The textbook for mechanical engineering is now available in a clear three-volume format in its revised and updated 26th edition. This three-volume standard work for engineers in both study and profession focuses on "General Mechanical Engineering" as well as "Process and Systems Engineering," encompassing the essential foundational and detailed knowledge of mechanical engineering and ensuring documentation of the current state of technology. This established reference work with a "norm character" impresses with detailed construction drawings, tables, and diagrams with quantitative data, calculation methods, and an extensive bibliography. Volume 3 focuses on machines and systems, covering reciprocating machines, fluid machines, conveyor technology, process engineering, thermal equipment design, refrigeration, air conditioning and heating technology, biomedical engineering, energy technology and management, as well as transportation systems. Volume 1 contains fundamentals and tables, while Volume 2 addresses applications. The editors are Professor Dr.-Ing. Beate Bender from Ruhr University Bochum and Professor Dr.-Ing. Dietmar Göhlich from the Technical University of Berlin.